
The staff
Eight coaches.Seven certified.
Eight coaches on the floor, seven of them credentialed by CrossFit — including the only CF-L3 in Grayson County, a practicing chiropractor, and a trainer certified in gymnastics, weightlifting, and youth training.
What the levels mean
Why credentials matter.
CrossFit certifications are not participation trophies. Each level requires coursework, testing, and documented coaching hours.
CF-L1
The foundation. Two-day seminar and written exam covering the core movements, scaling, and class safety.
CF-L2
Hands-on coaching assessment. Trainers are evaluated on how they see and correct movement in real time, not just on what they know.
CF-L3
A proctored exam requiring a current L2 plus documented coaching experience. Comparatively few trainers hold it.
CF-L4
The top of the profession — live coaching evaluation by CrossFit staff. Very few trainers anywhere hold it.
The team
Meet the coaches.

Marshall Giasson
Co-owner of CrossFit Barbell Republic and the coach most members meet first. Runs the floor with an eye on standards and scaling.

Dr. Dustin Bergeron
Second-generation chiropractor at Denison Chiropractic, with a BS in Anatomy and certification as a Corrective Exercise Specialist. Mechanics and long-term joint health come before load.

Michael Baecht
The only CF-L3 in Grayson County. Masters competitor in the 55-59 division.

Blake Burleson
CrossFit specialty credentials in gymnastics, weightlifting, and youth training, and trained through USA Weightlifting.

Chantel Arnold
Nuclear medicine technologist in cardiology by day, CrossFit mom the rest of it. ACLS certified. A CrossFit athlete since 2013.

Lauren Wagner
Registered nurse (BSN) and a mom who has been a CrossFit athlete since 2012. Coaches gymnastics with the patience of someone who earned every skill herself.

Marissa Giasson

Ty Carter

Coached, not supervised.
There is a difference between somebody standing near you and somebody who can see what your hip is doing at the bottom of a squat.
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Come train with us. Coached, scaled to you, and it costs nothing. Find out whether CrossFit Barbell Republic is the right fit before you spend a dollar.
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